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BABCOCK WANSON offers the products and associated services you need for industrial drying applications.
indirect fired process
Indirect fired process air heaters
(from 464 to 3000 kW and 300°C)
  • Principle: Fresh air is drawn into the generator by an external fan. This air is heated by contact with the combustion chamber and the second pass tubes to reach the desired temperature.
  • Applications: for medium and high temperature air requirements.
  • Industries:  Plant drying, Food processing, Ceramics, Pharmaceuticals, Sugar refining, Milk drying, Print drying, Laminate curing, etc.
Type HTV series MTV series
Thermal Capacity kcal/h (kW)
500,000 – 2,000,000 (581 – 2,326) 150,000 – 2,000,000 (175 – 2,326)
Air flow range Nm3/h
6,800 – 28,000 3,600 – 48,000
Temperature range °C
20 – 300 20 – 300
Maximum Dt °C
230 130
87% 87%
Normal max. DP mm w.g.
90 45
Horizontal Horizontal
Combustion chamber
Stainless steel Stainless steel
4:1 4:1
Liquid and gaseous Liquid and gaseous
direct fired process
Direct fired process air heaters
(from 174 to 11600 kW and 1200°C)
  • Principle: With direct fired heaters the fuel is mixed with the process air flow, either externally or within the main flow path.
  • Applications: Medium to high air flows at high temperatures.
  • Industries: Ceramics, Clay, Printing/coating/laminating, Industrial abrasives, Composite material curing, Fertiliser production, Cement production, Laminate curing, etc.
Thermal Capacity kcal/h (kW)
100,000 – 15,000,000 (116 – 17,445) 100,000 – 30,000,000 (116 – 34,890)
Maximum outlet temperature °C
1200 800
100% less any system losses -
Normal max. DP mm w.g.
20 – 30 45
Horizontal or Vertical Horizontal or Vertical
Combustion chamber
Refractory lined -
4:1 10/20:1
Liquid and gaseous Natural gas, biogas, LPG or manufactured gas

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